Hi Molly,
The little Dusty Ravenna 26 almost has pedal harp tension, since the higher strings are very firm. These harps are sometimes offered for sale as good used harps, and are very reasonable. A lot of beginners start with one, then move on (or up) to a larger lever harp or pedal harp, so used ones can be found. They make good traveling harps for hobbyists and professionals. Gregg’s ideas are also very good, and cheaper, I’m sure. My “cheap cure” is my little emery board, ha, ha!
Harp Hugs,
Balfour (and Carol Lynn)